. 2019 Jun 21;8(6):189. doi: 10.3390/antiox8060189

Table 2.

Retention time (RT), mass spectrum (MS), and polyphenolic composition (mg/g of extract) of pHWE.

N°	RT	Compound	λ_max	MS (m/z)	MS² (m/z)	Extract
N°	RT	Compound	λ_max	MS (m/z)	MS² (m/z)	pHWE
1	12.3	Quercetin-3-O-rutinoside ^a	254, 353	609	463, 301	3.27 ± 0.06
2	12.6	Quercetin-3-O-galactoside ^b	256, 354	463	301	31.37 ± 0.32
3	12.7	Quercetin-3-O-glucoside ^a	256, 353	463	301	8.45 ± 0.10
4	13.2	Quercetin-3-O-xylanoside ^b	256, 354	433	301	8.88 ± 0.10
5	13.4	Quercetin 3-O-arabinopyranoside ^b	243, 352	433	301	2.31 ± 0.04
6	13.5	Quercetin 3-O-arabinofuranoside ^b	256, 352	433	301	15.09 ± 0.16
7	13.7	Quercetin-O-pentoside ^b	256, 351	433	301	3.32 ± 0.05
8	13.8	Quercetin-3-O-rhamnoside ^b	256, 350	447	301	26.05 ± 0.27
9	14.9	Phloretin-2-O-glucoside ^a	227, 284	435	273	15.96 ± 0.20
					Total	114.75 ± 1.25

Identification was performed based on (a) the corresponding standard; (b) UV and MSⁿ spectra, plus elution order previously described in the literature [5,37].